So our heat/ac has not been working for over a year. I think it might be an electrical issue. it used to work every once in a while, but now, its not working at all. we just replaced the blower motor, which I knew we shouldn’t have done b/c I think we need a regulator? has anybody dealt with this issue?
our odotmeter is not working as well and some lights are turned on in the dashboard which should not be on as well. (which is why I think it is an electrical problem.)
are you sure? they seem to be electronic in modern cars. We don’t know the year of this Buick.
wikipedia:
By the early 2000s, mechanical odometers would be phased out on cars from major manufacturers. The Pontiac Grand Prix was the last GM car sold in the USA to offer a mechanical odometer in 2003, the Canadian-built Ford Crown Victoria and Mercury Grand Marquis were the very last Fords sold with one in 2005.
+1. Mechanical odometers have largely disappeared from new cars. Simulated “gages” are much cheaper to make and install.
The blower motor is a 12VDC motor. Its speed is regulated by passing the12VDC through a stepped resistive network that “drops” voltage such that the motor sees a lesser voltage. It’s generally that network that needs replacement. The fan itself can be unplugged and tested using a 9V transistor radio battery. Or two 6VDC batteries in series. That’s how I do it.
The bad news is that on many modern car a lot of these controls are incorporated into a “Body Control Module”. You might want to ask your dealer’s parts window guy for this information. He can look it up for you.
I would check out the blower motor resistor as @bing suggested, Your other prblems are unrelated imhop. The variable resistors are inexpensive, and usually not to hard to replace.
You think the alternator’s voltage regulator is faulty? That’s pretty easy to test for yourself if you have a volt meter. Connect your volt meter to the + and - terminals on the battery on the 20 vdc scale. With the engine off it should read about 12.5 volts. Now start the engine. It should now read 13.5 - 15.5 volts. And slowly go down towards 13-13.5 volts the longer the engine runs. It that all checks out, unlikely to be a faulty alternator voltage regulator. Not saying you don’t have an assortment of electrical problems though, hard to say over the internet. The heat blower problem is probably not a part of a systemic electrical problem though, it’s most likely a problem with that circuit only. Heater blowers are a pretty common failure item we here about here, usually it is the blower cage is struck due to debris, the motor itself has failed, or the blower resistor pack, or the blower control module.
Not a regulator, a relay. Sorry, confused the two. Relay bc the odotomter decides to light up when the blower works. I have a low tire light on when it ahpuldnt be on, door/teunk light is on. When those turn off, the blower works. The speedometer is working an functional.
That’s very different: if your father told you to do it, at least you learn the valuable lesson that fathers don’t know everything, which you can remember when you’re one.
db4690, the tire pressure light is always on, doesn’t matter if I put air in it or not. I think its a faulty sensor. the door trunk light is on no matter what. the lower speeds and higher speeds do not work at all. so what do you think I should try it next?
The dome light is staying on, as if the doors were opened?
The warning in the cluster is illuminated, indicating that a door and/or trunk lid is open?
It sounds like you do have a faulty tire pressure sensor
What year is your Regal? I’m asking because on some cars, the blower resistor and relay are combined into one unit. What ac system do you have? Manual ac controls? Automatic climate control?